Tire.



PATENTED JULY 17, 19 06.

J. H. SWAIN;

TIRE. APPLICATION TILED JULY 25, 1905.

5m w o proved tire of UNITED STATES PATENT OFFICE.

JAMES l-LSWAIN, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO H. M. &'S.

INCORPORATED. OF TION OF PENNSYLVANIA.

Specification of Letters Patent. T

ARMORED TIRE COMPANY,

PITTSBURG', PENNSYLVANIA, A CORPORA- TIRE.

Patented July 1 '7, 1906.

Application filed July 25, 1905. seen in. 271,184.

To (4Z1 whamit Ti l/11y concern: 5

Be it known. thatiI, JAMns TIL-SWAIN, a citizen ofv the United ".States of America, residing at Pittsburg, in the county of A1le gheny andState of Pennsylvania, have invented certain I new and useful Improvements in Tires,Toffv'vhich the following is a specification, reference'being had therein to sisting of an inner and outer tube, between which is interposed wrappings or layers of vulcanized fiber and canvas; 'and the present invention aims to provide novel means for materially strengthening and increasing the longevity of a tire;

The embodiment of the invention which isillustrated in the best form will be more fully described in the following description and claims.

Referring to the drawings, Figure 1 is a cross-sectional view of a tire constructed in accordancewith my invention. Fig. 2 is a fragmentary plan of the tire, illustrating the different layers or wrappings of material which ompose the tire.

tins application I construct my iman inner tube 1, preferably formed of rubber, and surrounding the tube is a flexible layer or wrappin of material 2, such as canvas. .Upon' this is wrapped a vulcanized-fiber. wrapper 3, which is preferably made in strips and spirally wound around the canvas, as illustrated in Fig. 2 of the drawings. Surrounding this vulcanized-fiber v wrapper is a wrapping of thin steel 4, which is also preferably made in strips andspirally wound around the vulcanized-fiber Wrapper 3 in an opposite direction, this wrapping of steel serving to establish a resilient tire of sufficient strength to Withstand the internal portion .8.

ayer of canvas pressure exerted upon the same when rial-pressure when used upon the wheels of motor-driven vehicles, such as automobiles. Another layer or wrapping of vulcanized fiber 5 is placed around the steel wrapping 4, this Wrappi v 5 being wound in an opposite direction to th lar direction to the first-mentioned vulcanized-fiber wrapping 3. Another wrapping of canvas 6 is placedupon the wrapping of ma teria'l just described, and inclosing the va- -I1011S wrappings or layers of the tire is an outer .tube 7, having an. enlarged treaded filled with air and the extere steel wrappingdand inasimia This tube,'which preferably constructed of rubber, is providedwith an an nular rim-seat 9, which is employed for securing the tire upon the rim of a Wheel, the manner of securing the tire upon a wheel being the subject-matter of an accompanying application.

In interposing a steel wrapping between the wrappings of vulcanized fiber of the tire I insure the inner'tube 1 of the tire against puncture, and as this steel Wrapping is referably formed of very thin resilient stee .and'

like resiliency is given to the tire, and at the same time this steel wrapping serves to strengthen and fortify the tire against col lapse.

' In constructing my im roved tire I have found that the vulcanizezffiber which I employ, together with the steel wrapping, has

arranged spirallv within the tire, a springcertaln characteristics which are an advantage in the use. of the tire. Forinstance, I have found that the frictional contacting of the spirally-wound steel wrapping with the vulcanized fiber causes the steel Wrapping to wear. Consequently before the indurate surface of the vulcanized fiber becomes so worn as torender the tire susceptible to a puncture the steel wrapping will have first i ecome Worn out but as this frictional wearing of the steel wrapping is so slight it is possible that the exterior of the tire will become worn-before the steel wrapping needs renewing. The advantage gained by usin a steel wrapping provides a construction which is positively puncture-proof, and while certain incisions maybe made exterior layer or wrapping it will be impossiin the vulcanized of the invention.

ble for such incisions to affect the steel wrapping to materially damage the tire.

While I have shown the preferred arrangement of the different parts of my improved tire, it is obvious that it may be slightly modified. without departing from the scope So, also, I do not confine myself to the manner of securing the tire to a wheel, but preferably employ such means as described and claimed in the accompanying applications.

What I claim, and desire secure by Letters Patent, is-

1. A tire consisting of a tube, canvas surrounding said tube, vulcanized fiber spirally .wound around said canvas, a .Wrapping of thin steel spirally wound around said vulcanized fiber, in an opposite direction thereto,

vulcanized fiber spirally wound around said steel in an opposite direction to said steel,

canvas surrounding said vulcanized fiber, a

tube surrounding the last-named canvas, said tube-having an enlarged tread, and a rim-seat carried by said tube, substantially as described.

2. A tire consisting of an inner tube, canvas surrounding said tube, vulcanized fiber surrounding said canvas,,strips' of steel spirally wound around said fiber, vulcanized fiber spirallywound around said steel, canvas 4 surrounding sa d fiber, and a tubesurround- 1 tion, substantially as described.

I I a mg said canvas and having an enlarged por- 3. A'tire consistirn of a tube, flexible material surrounding said tube, vulcanized fiber spirallywound around said material,-steel strips spirally wound around said fiber in an opposite direction, canvas surrounding said steel, andta tube surrounding said canvas,

substantially as described.

4. In a pneumatictire, an inner tube, and

an outer tube, a wrappin of thin ribbon-like steel aroundthe inner tu' e, and a wrappin of thin vulcanized fiber around the stee wrapping.

5. In a pneumatic tire, an inner tube and an outer tube, and three superposed protective wrappings around the inner tube, the intermediate Wrapping bein r of thin ribbonlike steel, and the inner and outer wrapping being each of vulcanized fiber wrapped spirally in reverse directions. I

6. In a pneumatic tire, an air-tube, and three superposed protective wrappings there for, the intermediate wrapper of the three being of thin ribbon-likesteelwound spirally,

and the inner and outer wrapping being of thin vulcanized-fiber strips Wound spirally ized-fiber wrapper on the steel wrapper.

9. In a pneumatic tire, an inner tube, a

surrounding wrapping of fibrous material. a I

thin vulcanized-fiber strip wound on the fibrous material, a thin ribbon-like steel strip Wound on the vulcamzed-iiber wrapping, a

second vulcanized-fiber strip' woundon the steel wrapper, and a surrounding outer tube.

10. In a pneumatic tire, an inner tube, a surrounding wrapping of fibrous material, a thin vulcanized-fiber strip wound on the fibrous material, a thin ribbon-like steel strip wound on the vulcanized-fiber wrapper, a

second vulcanized-fiber strip wound on the steel Wrapping, a fibrous wrapper around said second vulcanized-fiber wrapper, and a surrounding outer tube- In testimony whereof I'afiix" my signature in the presence of two witnesses.

JAMES H. swam.

Witnesses: I I

K. II. BUTLER, J. A. h'IEANS. 

